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Gabriele Cosmo
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examples/advanced/radioprotection/README
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Geant4 - Radioprotection example
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The radioprotection example is developed and mantained by Susanna Guatelli and Jeremy Davis,
Centre For Medical Radiation Physics (CMRP), University of Wollongong, NSW, Australia.
The radioprotection example is developed and mantained by Susanna Guatelli (Centre For Medical Radiation Physics (CMRP), University of Wollongong, NSW, Australia) and Francesco Romano (INFN - Sezione di Catania, Catania, Italy)
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Contact: susanna@uow.edu.au
jad028@uowmail.edu.au
francesco.romano@ct.infn.it
geant4-advanced-examples@cern.ch
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List of authors:
S. Guatelli and J. Davis.
List of external collaborators:
J. Magini and G. Parisi - University of Surrey, United Kingdom
J. Davis. - University of Wollongong, NSW, Australia
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----> Introduction.
Radioprotection example models a simplified diamond microdosimeter, developed by
Prof. Anatoly Rosenfeld and his team at the Centre For Medical Radiation Physics,
CMRP, University of Wollongong, NSW, Australia. The design of the device is documented in
J. Davis, et al., "Characterisation of a novel diamond-based microdosimeter prototype
Radioprotection example models different detectors for microdosimetry in space applications. The example lets the user
choose between the models of a simplified diamond (1), a micro-diamond (2) and a silicon microdosimeter (3):
1) A semplified diamond microdosimeter is based on the detector developed by Prof. Anatoly Rosenfeld and his team at the Centre For Medical Radiation Physics, CMRP, University of Wollongong, NSW, Australia. The design of the device is documented in J. Davis, et al., "Characterisation of a novel diamond-based microdosimeter prototype
for radioprotection applications in space environments",IEEE Transactions on Nuclear Science,
Vol. 59, pp. 3110-3116, 2012.
The diamond microdosimeter is set in a vacuum. An isotropic field of Galactic Cosmic Rays (GCR) protons
is incident on the device.
The energy deposition is calculated in one of the sensitive detectors.
2) The microdiamond detector is based on the detectors developed by the Research Group of The University of Rome "Tor Vergata". The design and performances of the detector are documented in C. Verona et al., "Spectroscopic properties and radiation damage investigation of a diamond based Schottky diode for ion-beam therapy microdosimetry", Journal of Applied Physics, vol. 118, 2015, and in C. Verona et al., "Toward the use of single crystal diamond based detector for ion-beam therapy microdosimetry", Radiation Measurements, vol. 110, 2018.
3) The silicon microdosimeter is based on the detector, developed by the Centre For Medical Radiation physics,
University of Wollongong, documented in D. Bolst et al “Validation of Geant4 for silicon microdosimetry
in heavy ion therapy”, 2020 Phys. Med. Biol. 65 045014.
All the microdosimeters are set in vacuum and it is possible to select among the avilable detectors
via a macro command (/geometrySetup/selectDetector "..."), which is included in the "geometry.mac" macro.
This macro is, in turn, called in both the vis.mac and run.mac macro files.
An isotropic field of Galactic Cosmic Rays (GCR) protons is incident on the device.
The energy deposition is calculated in the sensitive detectors.
In particular in this example it is shown how to:
- model a realistic isotropic field of GCRs by means of the General Particle Source
@@ -116,8 +125,9 @@ For any problem or question please contact Susanna Guatelli, susanna@uow.edu.au
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-----> Future developments
1) The code will be refined.
2) A silicon microdosimeter will be modelled as well in the next future.
1) The code will be refined and analysis improved
2) scripts for micorodosimetric spectra analysis will be implemented
3) Different models of detectors will be also included